Meaning

1. To block, suppress, restrain (something).
2. (informal) To restrain (a person).
3. To take no action on (something); to hold (something) in reserve without actually using.
4. To be a member of (something).
5. To hold an official inquiry regarding (something); to deliberate about (something).
6. To insert (something) into one's vagina or anus from below.
7. Used other than figuratively or idiomatically: see sit, on.